Standard: BS 3692 (British Standard for precision hexagon bolts, screws, and nuts)
Thread Size: M48 (Metric thread, 48 mm nominal diameter)
Thread Pitch (Coarse): 5.0 mm (fine pitch variants available like M48×4 or M48×3)
Thread Type: ISO metric, 60° thread angle
Bolt Types Covered: Hex bolts, hex screws, and set screws
Material Grades: Commonly found in 8.8, 10.9, or stainless steel (for corrosion resistance)
Tolerances: External thread tolerance 6g (standard medium fit per BS 3692)
Head Type: Hexagonal head (dimensions standardized by BS 3692)
Applications: Heavy-duty structural use, wind turbines, engines, heavy machinery, pressure vessels, bridges
M48 Bolt – BS 3692 Standard
